229-4-29065-3

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Circuit Breakers

229-4-29065-3 Application Field and Working Principle

Circuit breakers, also known as CBs, are electrical devices which are designed to cut power to circuits when an unexpected surge or spike in current occurs. This helps to protect the electrical system and its components from overload, short circuit, and other dangerous situations. CBs come in a wide range of shapes and sizes and are used in both industrial and residential settings.The application field of CBs is vast, ranging from inside a family home, to large industrial complexes, to remote, off-grid power grids. In the home, it is used to prevent power surges from frying electronics. In larger, industrial settings it also helps to protect sensitive equipment from power spikes and other hazards, providing an extra level of safety.The working principle of a CB is fairly simple and straightforward. It has two main components: the contact points and the switching mechanism. The contact points are what actually create the electricity break. A basic circuit breaker will have two contact points - one on each side of the switch - which are used to send current through when the switch is closed. When it is opened, the current breaks and the power is cut.The switching mechanism is the other component of the CB. It is usually a type of bimetallic strip or switch, which can detect when the current has exceeded its threshold. When this happens the switch will open automatically, breaking the power in the circuit. The bimetallic strip may also be temperature sensitive, which allows it to respond to surge in temperature as well.In summary, circuit breakers are electrical devices which are used to protect electrical systems from power surges, electrical faults, and other dangerous situations. They are composed of two main components: the contact points, which create the break in the electrical circuit when the switch is opened, and the switching mechanism which automatically opens the switch when the current exceeds its threshold. CBs can be used in a variety of different settings, both residential and industrial, providing an extra level of protection and safety to the electrical system.

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